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PV: Plenarvorträge

PV VI

PV VI: Plenarvortrag

Montag, 16. März 2015, 14:00–14:45, H 0104

Complex functional nanooptics and plasmonics — •Harald Giessen — 4. Physikalisches Institut und Forschungszentrum SCoPE, Universität Stuttgart, Pfaffenwaldring 57, D-70569 Stuttgart

Nanooptics has experienced tremendous growth over the last few years. The possibility to tailor materials and their dielectric and optical properties from the bottom up on the subwavelength level has opened the door to ultimate control of light-matter interaction. This holds true for the linear optical properties, as well as for optical nonlinearities. Particularly, plasmonics which involves resonant electron oscillations in metallic nanostructures, allowed for large electric field confinement and enhancement on the sub-100 nm length scale. Specifically, the combination of a variety of geometrical shapes and structures has enabled optical resonance tailoring, for example by utilizing narrow Fano resonances. Novel functionalities such as plasmonic chirality, leading to giant optical activity, can be attained through geometrical arrangment of simpler plasmonic building blocks. Hybrid plasmonic structures, which involve additional elements such as active phase-change, nonlinear, or magneto-optical materials, give control over the dynamical behavior of nanoscopic light-matter interaction. In this plenary talk, I am going to review some of the key fundamentals for building more complex plasmonic and nano-optical systems, and first applications for sensing as well as dynamic changes of their functionality will be presented.